Hi calvert punto.
I did mine around a month ago. Was easiest and IMO the best looking mod for the price.
You have to wash it first. completely clean
Then mask off the surrounding area, with masking tape and newspaper. The more you use, the less likely to are to hit other parts of your car.
Then Primer, 2/3 coats should do.
Then 2/3 coats of your colour code
I didn't lacquer though but it has kept so it seems fine without it.
I see yours is a mk2b is it? I'm guessing your doing your bumpstrips on your bumpers yeh? As I can't see your door ones? maybe I'm just blind lol